GVP-123 – Maintenance / GVP-1 - Disassembly
© 3M June 2006. All rights reserved.
3) The GVP-100 is the Motor Blower
. It should be replaced if the
outside of the case is cracked. To remove the motor blower:
a. Disconnect the GVP-110 Power Cord from the battery and the
motor blower.
b. Remove the GVP-122 Breathing Tube.
c. Turn the PAPR assembly upside down so the breathing tube
connection faces the ground.
d. Unthread the belt from the plastic belt holder on the back of the
motor blower.
e. Remove the filter/cartridge by unscrewing it from the inlet port of
the motor blower.
4) The GVP-101 is the Gasket Replacement Kit.
It contains two
replacement gaskets for the PAPR inlet and outlet. The gaskets should
be replaced when they are cracked or excessively worn. To remove
the gaskets:
a. Use a flat edge screw driver to pull them away from the motor
blower inlets and remove them.
5) The GVP-111 is the Battery Pack.
The battery pack should be
replaced when it is cracked, does not hold a charge or when the red
battery light stays on for more than 20 minutes after connecting the
battery to the charger. To remove the battery:
a. Unthread the battery from the plastic belt holder on the back of
the battery.
b. If the battery requires charging, the “red” recharge light will
come on and the battery pack will need to be charged
immediately. This recharge light is not an airflow indicator.
Airflow must be checked with the GVP-113 Airflow Meter.
i. During charging the red light should turn off, if the light
remains on for more than 20 minutes after connecting to
the charger, replace the battery pack. Depending on the
charging and use conditions, batteries generally last
between 500 and 1000 recharge cycles.
c. The battery pack must be charged in fresh air with no
combustible vapors present. The battery should be charged at a